Mason City, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° -34° (1899) 62° (2002) 0.82" NA
February 12° 29° -35° (1899) 67° (1981) 0.92" NA
March 23° 41° -32° (1962) 84° (1986) 2.01" NA
April 35° 57° 5° (1982) 95° (1980) 3.55" NA
May 46° 69° 23° (1967) 104° (1934) 4.96" NA
June 57° 79° 31° (1928) 104° (1934) 5.36" NA
July 61° 82° 38° (1899) 107° (1936) 4.68" NA
August 58° 80° 30° (1915) 103° (1930) 4.2" NA
September 49° 73° 15° (1899) 103° (1922) 3.18" NA
October 37° 60° -4° (1925) 94° (1963) 2.38" NA
November 25° 43° -14° (1897) 79° (2006) 1.99" NA
December 11° 28° -26° (1983) 65° (1998) 1.19" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 52° 74° 36° (1964) 92° (1934) 0.18" NA
Jun 2 52° 74° 31° (1928) 102° (1934) 0.18" NA
Jun 3 52° 75° 34° (1928) 92° (1914) 0.18" NA
Jun 4 53° 75° 33° (1945) 95° (1968) 0.18" NA
Jun 5 53° 75° 37° (1927) 94° (1911) 0.19" NA
Jun 6 54° 76° 40° (1983) 97° (1933) 0.18" NA
Jun 7 54° 76° 33° (1935) 95° (1933) 0.18" NA
Jun 8 54° 76° 37° (1931) 100° (1985) 0.18" NA
Jun 9 55° 77° 34° (1913) 102° (1985) 0.18" NA
Jun 10 55° 77° 33° (1913) 98° (1933) 0.18" NA
Jun 11 55° 77° 38° (1913) 94° (1920) 0.18" NA
Jun 12 56° 78° 41° (1927) 95° (1920) 0.19" NA
Jun 13 56° 78° 38° (1933) 99° (1987) 0.19" NA
Jun 14 56° 78° 37° (1933) 99° (1987) 0.18" NA
Jun 15 57° 79° 37° (1917) 99° (1913) 0.19" NA
Jun 16 57° 79° 42° (1961) 97° (1918) 0.19" NA
Jun 17 57° 79° 35° (1915) 98° (1913) 0.18" NA
Jun 18 58° 80° 43° (1999) 99° (1953) 0.19" NA
Jun 19 58° 80° 40° (1926) 98° (1953) 0.18" NA
Jun 20 58° 80° 40° (1969) 99° (1933) 0.18" NA
Jun 21 58° 80° 37° (1992) 100° (1988) 0.18" NA
Jun 22 59° 81° 43° (1972) 100° (1988) 0.17" NA
Jun 23 59° 81° 43° (1972) 101° (1934) 0.17" NA
Jun 24 59° 81° 42° (1972) 96° (1923) 0.16" NA
Jun 25 59° 81° 43° (1958) 99° (1934) 0.17" NA
Jun 26 60° 81° 41° (1926) 99° (1933) 0.17" NA
Jun 27 60° 82° 43° (1926) 104° (1934) 0.17" NA
Jun 28 60° 82° 40° (1911) 102° (1931) 0.17" NA
Jun 29 60° 82° 42° (1923) 101° (1931) 0.17" NA
Jun 30 60° 82° 42° (1943) 101° (1933) 0.17" NA
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